US671770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve.
Assignee: Individual
•
Filing: 1900-11-30
•
Granted: 1901-04-09
•
Expires: 1920-11-30
Abstract
No abstract record available.
Inventors
- 👤 Nathaniel C Locke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:00
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/18; F16K15/02; F16K15/06; F16K15/063; F16K17/00; F16K17/02; F16K17/168; F16K31/00; F16K31/02; F16K31/06; F16K31/0644; F16K31/0655; F16K47/00; F16K47/01; F16K47/011; F16K47/0112; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7782; Y10T137/7783; Y10T137/7784; Y10T137/7785
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1904-04-08 | 1904-10-08 | 1905-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-04-08 | 1908-10-08 | 1909-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-04-08 | 1912-10-08 | 1913-04-09 | $7700.00 | Window Closed / Lapsed |